Blog - whats new 4.9. WIP

content/blog/2024/12/camel49-whatsnew/index.md

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+---
+title: "Apache Camel 4.9 What's New"
+date: 2024-12-06
+authors: [davsclaus,squakez]
+categories: ["Releases"]
+preview: Details of what we have done in the Camel 4.9 release.
+---
+
+Apache Camel 4.9 has just been [released](/blog/2024/12/RELEASE-4.9.0/).
+
+This release introduces a set of new features and noticeable improvements that we will cover in this blog post.
+
+## Camel Core
+
+Added _startup condition_ feature to let Camel perform some checks on startup,
+before continuing. For example to check if a specific ENV exists, or wait
+for a specific file to be created etc.
+
+The supervised route controller now emits `RouteRestartingEvent` when routes are attempted to be
+started again after a previous failure. This allows to have _fined grained_ events for what happens.
+
+Added a _trust all certificate_ option for Camel SSL. To make it quick
+to use HTTPS but without having a valid certificate. Only use this for development purposes.
+
+The route dumper to XML and YAML no longer includes nodes with default values in the output.
+
+## DSL
+
+You can now globally configure data formats in XML and YAML DSL also, which makes it easier to
+set up your data formats once, and reuse these within all your routes by referring to their ids.
+
+## Camel Test
+
+We have made it easier to use fluent builders with mock endpoints to set expectations using Camel languages such as
+JSonPath, JQ, XPath, Simple, etc.  See `camel-mock` documentation for more details.
+
+## Camel JBang
+
+When showing _help_ (such as `camel get route --help`) then all the default values is now shown in the help text.
+
+The `camel get properties` can now show property placeholder values with default vs actual value, such
+as when values are applied from ENV variables. This makes it possible to better track how a value was configured.
+
+TODO: repl command
+TODO: receive command
+
+### Camel JBang Kubernetes
+
+TODO:
+
+## Camel Observability Services
+
+One of the main challenges of running a Microservices Oriented Architecture on cloud is to monitor how the different services deployed are interacting together. During the last years we have worked to introduce several components that cover the **Observability** stack. However all the different components contributing to the observability services had to be configured each of them separately. Even worse, each of the different runtimes we support in Camel (Main, Quarkus, Spring Boot) had its own configuration and its own endpoints.
+
+The new component we're introducing in this release, `camel-observability-services` has the goal to uniform and harmonize the configuration and to provide a set of default configuration that are the same regardless the runtime of choice. This is going to be particularly handy when you need to manage Camel on the cloud, providing a set of opinionated tools with default settings. So far, when you are using this component, you're going to use these components out of the box:
+
+* `camel-health`
+* `camel-management`
+* `camel-micrometer-prometheus`
+* `camel-opentelemetry`
+
+Read the manual to get more information about [how to do observability with Camel](xref:components::observability-services.adoc).
+
+NOTE: the component will require an extension and will be available on Quarkus runtime with the first release of Camel Quarkus supporting 4.9.0 which should be done some week after this core release.
+
+## ????
+
+TODO: stuff here
+
+## Camel Groovy
+
+We have aligned the syntax to use same naming pattern as the simple language, which makes it easier
+to use both languages with Camel. This means you can refer to exchange, headers, variables in the same way.
+
+Added `log` function to make it easy to write to log from within a groovy script.
+
+For low-code users that favour using Groovy then we made it possible to use the Log EIP with groovy instead of simple.
+You can configure this with `camel.main.logLanguage = groovy`.
+
+The Log EIP now formats the `${exchange}` output using the standard exchange formatter, which makes
+it easier to see the content of the current `Exchange`.
+
+## Camel JMS
+
+The JMS component will now default filter out `CamelXXX` headers as done by other Camel components.
+
+## Camel HTTP
+
+The `camel-http` component now supports caching and refreshing OAuth2 tokens.
+
+## Security Vaults
+
+In the `camel-kubernetes` you can now let Camel be auto-reloaded on configmap updates, just as it was possible with secret updates.
+
+In Camel Spring Boot you can use security vaults to store configuration values, which now can also be used in Spring configurations
+such as `spring.datasource.password = {{aws:myDatabasePassword}}`
+
+## Camel Kamelets
+
+We have moved `kamelets-utils` from Camel Kamelets to Camel Core project (inside `camel-kamelets`) to make it easier to maintain,
+and also because Kamelets are first-class everywhere with Camel.
+
+You can now configure kamelets with ENV variables using a more human ready for lang parameters.
+
+The option `bucketNameOrArn` can now be configured using both of the following styles:
+
+```properties
+CAMEL_KAMELET_AWS_S3_SOURCE_BUCKETNAMEORARN = myBucket
+CAMEL_KAMELET_AWS_S3_SOURCE_BUCKET_NAME_OR_ARN = myBucket
+```
+
+This actually applies to all the Camel configuration you can (not only for kamelets).
+
+## Camel JAXB
+
+We have optimized `camel-jaxb` to include a cache on `ObjectFactory` that makes this faster when using JAXB
+for type converters.
+
+## Miscellaneous
+
+Upgraded many third-party dependencies to the latest releases at the time of release.
+
+The `camel-spring-boot` is upgraded to latest Spring Boot 3.4.0 release.
+
+## New Components
+
+We have added a few new components:
+
+- `camel-clickup` - Receives events from ClickUp
+- `camel-flowable` - Send and receive messages from the Flowable BPMN and CMMN engines.
+- `camel-fury` - Serialize and deserialize messages using Apache Fury
+- `camel-observability-services` - Opinionated observability for Camel on cloud
+- `camel-smooks` - Added smooks also as a data format
+- `camel-jolokia-starter` - To make using Jolokia easy with Camel Spring Boot
+
+## Upgrading
+
+Make sure to read the [upgrade guide](/manual/camel-4x-upgrade-guide-4_9.html) if you are upgrading from a previous Camel version.
+
+If you are upgrading from, for example, 4.4 to 4.8, then make sure to follow the upgrade guides for each release in-between, i.e.
+4.4 -> 4.5, 4.5 -> 4.6, and so forth.
+
+TODO: Upgrade recipes
+https://github.com/apache/camel-upgrade-recipes
+
+## Release Notes
+
+You can find more information about this release in the list of JIRA tickets resolved in the release:
+
+- [Release notes 4.9](/releases/release-4.9.0/)
+
+## Roadmap
+
+The following 4.10 release is planned for Feb 2025.
+